RP-SMA and SMA are both round screw-type connectors, with medium-sized, threaded coupling connectors that are rated for frequencies from the lowest (DC) up to 18GHz: This antenna cable adapter is compliant for all types of wireless antennas, including WiFi & WiMax networks: 802.11N, AC, G, A, B. 900MHz, 2.4GHz & 5GHz applications, as well as any other frequency between 0 and 18GHz.